If you would like to email me regarding tech questions about your ZB50, why not post it on the ZB forum (by clicking HERE)? I will answer your question on the forum.You may even get a better answer from somebody more knowledgable than me!
NSR50:
If you have just purchased a HRC NSR50 and would like to order some parts to make it street legal, please send an email to my friend Jamie in Japan. Click here
Tell him Larry sent you. He can hook you up with most all of the parts to make your bike "legal". Just be warned that it may not be cheap. You will have to purchase the following: Magneto (with lighting coil), complete wiring harness, tail light assy, head light assy, front turn signals, CDI box, speedometer, handle bar switch assy (left side), ignition key switch, right side kill switch, etc!
Otherwise, you can feel free and email me directly by clicking HERE. When you email me, please be sure to put something related to motorcycles on the subject line (like Honda, minibike, NSR, YSR, C70, or something like that). I get a lot of junk mail and I will delete them if it looks like junk mail. Sorry if I did not reply to you in the past. Thanks.